Dome head arrangement for car tanks



Sept 6, 1932.

V. WIL-LOUGHBY DOME HEAD 'ARRANGEMENT FOR CAR TANKS Filed April l1. 1931 This invention relates Patented Sept. 6, 1932 vieron WILLOUGHEY, or mneEwooD, NE AND roUNnRY COMPANY, or NEW YORK,

IN. v,'Y., .A CORPORATION NEW JERSEY DOME HEAD AEEANGEM'ENTFOE. CAR TANKS Application and Apin- 11,

generally to tanks or containers and has particular .reference to manner that they-may be the domes of car tanks. One obj ect of this invention is the provision of a new and improved dome head casting. Another object of this invention is the provision of a casting for the domeheads of tanks which comprises a combined dome ring and support-*for tank fittings.

Still another object of this invention is'the provision of a casting fior domel heads adapted to support 'tank fittings in` such a concealed and retained in a position such as to prevent un- .authorized'tampering A further object ot this invention is the v rovision of a dome headand a casting torming a part thereotand including a. combined dome ring and support for tank fittings vwithin a box-like construction formed asa part of said casting. j L A still further objectfof this inventionis the provision of a new and improved vCasting lfor dome heads of car tanks whichincludes a dome ring and a web, a portion 'of the latter having aV box-like construction `formed cal marginal flange 14 tion 14 being provide construction indicated 20, portions of the latter with the extensions walls 2O andwhich is 'ing hinge lugs 24 engaged 1931. fseriai NQ.Y 529,396.

obviously the insulated.constructionis merel)T by-way o example.

Thecastmg A 1s a unit and serves as a combined dome ring and support fork tank fittings,

as will moreclearly app-ear hereinafter, and comprises aI web 12 having a vertiextending both-above and below the horizontal plane' of the web and defining a dome ring; the dome ring porlange at its lower edge seated on the dome head 4 and secured thereto by the before mentioned tastenersi.

FormedV with the web 12 is an integral box comprising the bottom plate18 and side walls being defined by extensions ofthe lange'14, as shown at 21, while f other portions extend vertically above and below thevweb 12, as shown at 23, andmerge 21, as shown'clearlyk in Fig. .1. v

The box B is closed by a cover 22 which is normallyA seated on the upper edge of the provided with extendby a hinge pin 26 integral therewith and provided with' a re supported in lixed lugs 28 formed with the movablecover for normally concealing tank walls 20. The` cover 22 is secured in posilittings supported therein; the web, eX- teriorly of the box-like construction,being provided witha man-hole opening normally l Figure 1 is a v invention ap'- tank dome showing the present plied thereto, andV .r

Fig. 2 is a sectional view on the lineK2-2 of Fig. 1. y j

TheV drawing shows the upper `portion ofa tank dome or, other container, the dome comprising a dome sheet 2 and a dome head 4V having an opening ,therein adjacent which lthe dom-e head casting VA of the present invention is secured by suitable Jfasteners 'such as rivets 6. The dome illustrated is insulated at 8 and'is provided with asheathing 10, but

iears 34, 'as clearly rlatter having a` 'by the bottom plate 18, as clearly shownin Fig. 2.

tion by means of a bolt 30 pivoted to the wall u2() at the extensions 21, as shown at 32, and

engaging between s aced ears 34 projecting from the cover; the olt being provided with a securing nut 35 adapted to bear against the shown inthe drawing. While the drawing shows the cover 22 as being secured in position by means of abolt, it is obvious that a suitable locking means forthe cover may be provided whereby to prevent opening of the cover 22 by' an unauthorized person.

rlhe bottom plate 18 serves as a support for certain of the tank littings such asthose which should be concealed against the action of the weather. In the present instance they are shown as a sampler 36, peep sigl1ts38, relief valve 40, valve rod 42, air siphon or filling and discharge pipe 46, the

valve 47 retained in positiony The valve rod 42 extendsthrough with an attaching generally at: B and' w JERSEY, AssIGNoR To AMERICAN CAB I vent 44 and a stuffing boX 48 and the remainder of the iittings just described are connectedto the bottom plate in any suitable or desired manner in order to provide leak-proof joints.

t is not the intention to provide a dome head vcasting of complete boX-like construction and the box B shown in the drawing comprises only a portion of said casting, as rclearly shown. j In some instances safety valves have been secured to the dome heads outside of the` dome ring. This requires punching the dome heads, as will be obvious, and in the case of an Vinsulated tank the 'positioning of such safety valves requires the extension thereof through the sheathing and insulation thereby providing for potential leaks due to the joints formed by such positioning of the safety valves. inasmuch as the boX B occupies only a portion of the dome head casting A 1t is possible to support safety valves by said casting, and as clearly shown in the drawing, the web 12 of the castserves to support the safety valves indicated at 50. lhe web l2 is also provided with a threaded man-hole opening which is normally closed by a man-hole cover 52 adapted vto be removed when desired.

From the above description it is believed that the construction of the present invention will beV fully apparent to those skilled in the art. The device of the present invention comprises a casting which includes a `combined dome ring and supporting means for tank fittings including such fittings as should be concealed and other fittings which it 'isunnecessary to conceal. The device of the present invention eliminates the. use of the usual dome cover Which is removably se- #cured to the dome ring and the device also `(provides for the positioning and supportof all tank fittings, thus eliminating the necessityof extending any fittings through 'the "dome head, the insulation or the sheathing.

`The drawing shows one embodiment of this invention, but it is to be understood they are for illustrative purposes only and yvarious changes in theform and proportions of the device may be made within the scope of the appended claims without departing from the spirit -of the invention.

l/Vhat is claimed is:

l. lIn a tank dome having a head Vprovided with an opening, means closingvsaid opening -comprising a dome head casting including a ring member and web formed as an integral structure, said web `having an open box-like portion formed in a part'thereof, a removable closure element for 'the box-like portion, said web further having a man-hole opening spaced from the box-like Vportion and' a man-hole cover normally closing said opening.

2. In a tank dome having a head provided ,with an opening, means closing said opening .comprising a dome ring member and web tinge, said web having a man-hole and aclosure therefor into box form Vin outside of ,therein outside of the box,

formed as a unit, said web having an open box-like portion for supporting tank fittings, a closure for the boX-like portion, said web further having a man-hole opening formed therein adjacent the box-like portion, and a man-hole cover normally closing said open- In".

A dome head casting comprising a ring member and web formed as an integral structure, said web having 'a4 portion thereof `formed Vto define yair/open box-'like construction the bottom plate Vof which is arranged in a plane lo'vv'e'r than the plane of the web and being ada ted to'support tank fittings, a cover hinge ly connected to the box-like construction, said webV having aman-hole opening arranged adjacent the box-like construction exteriorly thereof, and a man-hole cover normallyfclosing the 'man-,hole opening.

Yll. A dome head casting for attachment to a tank dome head, comprising a ring member and a web formed as a unitary structure, a portion of the web being depressed and having vertical vwalls adjacent thedepression to define an open-box for receiving tank fite opening arranged eXteriorly of the box.

5. In combination with a. tank dome, a dome head casting comprising airing member and a Web formed as a unitary structure, the vweb having an open-box formed therewith, a

portion ofthe ring vmember defining a part Vof said boX, a closure for'the box, saidweb the box.

6. Incom-bination, a tank dome comprising a head vprovided with an opening, and a dome head casting secured'to the head vand closing said opening, said casting including a web portion having a portion only thereof formed with'a bottom plate and vertical side walls, a cover for said boX, -tank fittingssupported by the bottom plate, said web also having'a man-hole opening formed therethe box and a-removable closure for said man-,hole opening. A

f7. In combinatioma tank dome comprising a head provided with an opening, 'and a dome head casting lsecured to the head and closing said opening, said 'casting including a webV portion having a portion only thereof formed into a boX with a bottom plate and vertical sidewalls-'a portion of said side vwalls defining a portiono'f 'the marginal edge of Vsaid web,ta`nk fittings supported by the bottom pla'te,a closu'rehingedly connectedv to the vertical Walls and'normally yconcealing the tank'fittingsfsupported by said bottom plate, Vsaid web having a man-hole .opening formed a man-hole cover 1,376,1eswl normally closing said man-hole opening and external ytank iittings supported by the Web I:utside of the box.

8. In combination, a tank dome comprising a head provided With an opening, and a domef nead casting secured to the head and closing said opening, said casting including a uritary ring member and Web, the latter having a portion only thereof formed into an open box with a bottom plate and vertical side Walls merging with the ring member, tank fittings supported by the bottom plate, a closure element hinged to the sid-e Walls Jfor normally concealing the tank fittings supported therein, and external tank fittings supported by the Web outside of the box.

9. A dome head casting having a Web bounded by a vertical marginal fiange with lateral attaching fiange, the said marginal flange developing into a Wall which continues inwardly transversely of the web, a bottom Wall merging with the transverse Wall to form a chamber for fittings, al cover for the chamber, a manhole cover removably located in the Web beyond said chamber, and a relief` valve on the web.

In Witness whereof I have hereunto set my hand. r

VICTOR WILLOUGHBY. 

